easy to understand or do; not difficult
The instructions are simple; you just press the green button.
Mia taught her younger brother a simple card trick.
having few parts or decorations; plain and basic rather than complicated or fancy
She wore a simple black dress to the party.
They live in a simple wooden cabin by the lake.
modest and ordinary; not seeking luxury or showing off
After traveling the world, he chose a simple life in the countryside.
The monk leads a simple existence with few belongings.
(dated, sometimes offensive) not very intelligent or experienced; easily fooled
They thought he was simple and tried to trick him.
Don't be simple—check the facts before sharing rumors.